5212454581 has 2 divisors, whose sum is σ = 5212454582. Its totient is φ = 5212454580.

The previous prime is 5212454573. The next prime is 5212454657. The reversal of 5212454581 is 1854542125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3972780900 + 1239673681 = 63030^2 + 35209^2 .

It is a cyclic number.

It is not a de Polignac number, because 5212454581 - 2³ = 5212454573 is a prime.

It is a super-2 number, since 2×5212454581² = 54339365517975771122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5212454581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5212454521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2606227290 + 2606227291.

It is an arithmetic number, because the mean of its divisors is an integer number (2606227291).

Almost surely, 2^5212454581 is an apocalyptic number.

It is an amenable number.

5212454581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5212454581 is an equidigital number, since it uses as much as digits as its factorization.

5212454581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64000, while the sum is 37.

The square root of 5212454581 is about 72197.3308440139. The cubic root of 5212454581 is about 1733.8602675034.

The spelling of 5212454581 in words is "five billion, two hundred twelve million, four hundred fifty-four thousand, five hundred eighty-one".